COUNTIES · EAST TEXAS · DISTRICT 06 · CODE 203

Harrison County, Texas

Harrison County permitting is running 5.3 permits a month over the trailing 90 days (16 total, down 53% on the prior quarter). 2 were issued in the past week.

TGNR East Texas II LLC leads with 32 permits in the past 12 months, one of 16 operators active in the county.

4 operators filed a first Harrison County permit in the past year.

Median permitted depth over the past year is 12,000 ft; 78% of the past year's permits are horizontal.

The county has 157 active disposal and injection permits, with 56.2M barrels injected in the 12 months reported through June 2025.

TexNet located 6 earthquakes of magnitude 2 or more in the county's permit footprint over the past two years, the largest M3.5.

7,595 drilling permits have been issued in Harrison County since 1977.

7,595 permits on file since 1977 · last issued Nov 3, 2026

Watch Harrison County

Also: every Harrison County well in the statewide list, searchable → · a year of permits on the map →

157
permits issued, 365d
+11%
vs prior 365d (141)
16
operators filing
78%
horizontal
14,363
avg permitted depth, ft
478
operators, all time

WINDOWS ON THE RRC ISSUE DATE · COMPUTED NOV 5, 2026 · WHY ISSUE AND SEEN DATES DIFFER

Permits issued by month

LAST 120 MONTHS · BY ISSUE DATE

Last 12 months 146 · prior 12 147(-1%)

01020302017201820192020202120222023202420252026

Top operators, last 12 months

By permits issued. Wells are the operator’s current inventory here from the RRC wellbore file.

Full operator directory →

New entrants, last 12 months

Operators whose first permit in Harrison County came in the last year. 4 in total.

Permit types, 365d

TypeWindowPriorAll time
Drill1291216,357
Recompletion28191,102
Reclass016

What the types mean →

Formations in completed wells

RRC WELLBORE FILE · ≥10 WELLS

Tops reported on completion filings for wells in Harrison County. A well counts for every formation it reports, so this reads as the county's stratigraphic column. About tops →

FormationWellsPermitted last 3 yrsMedian top, ftP10–P90
Travis Peak3,0431596,5305,888–7,290
Pettit2,5171716,2855,605–7,129
Cotton Valley2,3021528,4807,929–9,073
Rodessa1,6121585,6384,893–6,489
James Lime1,219295,8505,384–6,554
Bossier9922910,1089,747–10,538
Glen Rose8691383,6733,004–4,790
Massive Anhydrite (marker)847265,3104,536–5,979
Paluxy6751383,2562,592–4,242
Goodland5691182,7742,370–4,027
BMA54145,6004,897–6,506
Blossom523692,2451,880–3,032
Sligo515106,1105,553–6,740
Nacatoch471771,130900–1,929
Taylor36649,8749,458–10,520

Beyond the permit record

RRC UIC permits · H-10 reported volumes

Disposal and injection

157
active UIC permits of 419
670K
permitted bbl/day, active
56.2M
bbl injected, last 12 reported months
Jun 2025
reported through

Every active well, operator, and daily reporter in Harrison County →

Permitted volume is a ceiling, not throughput. How to read it →

TexNet catalog via USGS

Seismicity, last 2 years

6
M2+ events in the area
M3.5
largest

Monthly counts, magnitudes, and every recent event in the area →

Events are not tagged with a county; this counts M2+ events inside the bounding box of the county’s located permits, padded 0.1°. About TexNet →

Latest permits

NEWEST FIRST BY ISSUE DATE

PermitSeenIssuedOperatorLease / wellDepthAPI
919555Nov 5, 2026Nov 3, 2026Comstock Oil & Gas, LLCGibson Furrh #1HH30,00020335844
919552Nov 5, 2026Nov 3, 2026Comstock Oil & Gas, LLCAnderson Furrh #1HH30,00020335843
919546Oct 29, 2026Oct 27, 2026TGNR East Texas II LLCG08C Mochi BN #2UHH22,00020335842
919545Oct 29, 2026Oct 27, 2026TGNR East Texas II LLCG08C Mochi AN #1UHH22,00020335841
919348Oct 29, 2026Oct 27, 2026Oil & Gas Production, Inc.N. Louisiana Timberland #110,40020334143
918780Oct 23, 2026Oct 21, 2026Comstock Oil & Gas, LLCHerrin HA #1HH30,00020335836
918779Oct 23, 2026Oct 21, 2026Comstock Oil & Gas, LLCHerrin Brune B #2HH30,00020335835
918777Oct 22, 2026Oct 20, 2026Comstock Oil & Gas, LLCHerrin Brune A #1HH30,00020335834
918046Oct 2, 2026Sep 30, 2026Rose City Resources, LLCPatton #1HH8,00020335832
918624Sep 20, 2026Sep 18, 2026Pwep Operating, LLCSummers Spe #1HH12,00020335833

All Harrison County permits →

Questions about Harrison County

How many drilling permits were issued in Harrison County in the last 12 months?

157 permits were issued in Harrison County in the last 12 months, up 11% from 141 in the 12 months before. 78% were for horizontal wells. The most recent was issued Nov 3, 2026. 7,595 are on file since 1977.

Every Harrison County permit →

Who is the most active operator in Harrison County?

By drilling permits filed in the last 12 months, TGNR East Texas II LLC is the most active operator in Harrison County, with 32 of 157, followed by RFE Operating, LLC (31) and Brookston Energy, Inc. (20). 7 operators filed permits here in the last 90 days.

Operators in Harrison County →

How many oil and gas wells are in Harrison County?

7,016 wells are on file in Harrison County: 2,560 active, 2,398 plugged, and 35 permitted and not yet drilled. 888 are horizontal, and 96 operators hold them.

Every well in Harrison County →

How much oil and gas does Harrison County produce?

The Railroad Commission files oil and gas production by lease, not by well or by county. Each lease with wells in Harrison County is listed with its reported production on the county's Leases tab.

Leases in Harrison County →

How much water is injected in Harrison County?

56.2 million barrels of water were injected in Harrison County in the 12 months through June 2025, reported on form H-10. 157 of the county's 419 disposal and injection permits are active.

Disposal and injection in Harrison County →

What formations are drilled in Harrison County?

Completion filings for wells in Harrison County report tops for 15 formations in at least ten wells each. The most reported are the Travis Peak (3,043 wells, median top 6,530 ft), the Pettit (2,517 wells, median top 6,285 ft), and the Cotton Valley (2,302 wells, median top 8,480 ft).

Formations in Harrison County →

What basin is Harrison County in?

Petrora lists Harrison County in the East Texas. It is in the Railroad Commission's District 06.

The East Texas →

Have there been earthquakes in Harrison County?

TexNet located 6 earthquakes of magnitude 2 or more in the area of Harrison County's permitted wells in the last 2 years; the largest was M3.5.

Earthquakes in Harrison County →

About this data

Drilling permits from the RRC OGA049M master and daily daf420 files, rebuilt nightly into per-county figures; windows are on the date issued. Disposal from UIC permits and H-10 reports at the last settled month; earthquakes from the TexNet catalog inside the county's located-permit footprint.

Developers: this page as JSON is GET /v1/data/counties/tx/harrison?days=365, documented in the API reference.